Improvement in machines for making hinges



L. P. SUMMER'S. Machin-es for ,Making Hinges.

No.133,903 'Patented Dec.`10,1872.

UNITED STATES PATENT OFFICE..

LUCIUs P. sUMMEEs, 0E NEw EEITAiN, CONNECTICUT, AssIeNoE To P.

AND E. CoEBiN,

OF SAME PLACE.

IMPROVEMENT IN MACHINES FOR MAKING HINGES.

Specification forming part of Letters Patent No. 133,903, dated December10, 1872.

To all whom it may concern."

Be it known that I, LUCIUs P. SUMMERs, of New Britain, in the county ofHartford and State of Connecticut, have invented an Improvement inHinge-Machinery, of which the following is a specification:

thereby preventing any tremulous motion, and

the cutters are brought up and pressed tol their work by a mechanismconnected with the sliding die that rolls up the edge of the blank. Thesupporting-bedmu is drawn from under the half hinge upon the reversemovement ofthe parts, so that the half -hinge is dropped. In` thismanner each half-hinge is completed by one movement lof the machine.

In the drawing, Figure 1 is a plan of the machine; Fig. 2 is a verticalsection at the line x and Fig. 3 is an elevation of the cut-4 Yters andholder.

The bed a is sustained upon a suitable frame or legs, and contains theslide b that is reciprocated by the pitman c, crank d, and shaft e.

' At the end of the slide b is a concave or grooved face that acts uponthe edge of one of the blanks t' to roll the same over, -said blankbeing in a groove in the bed a, and the blanks are fed into this groovesuccessively from a hopper or slide automatically.` These parts, beingof known character, do not require further description. A stock, h,projecting as an arm from the slide b, carries a shaft, Z, that isrevolved bysuitable power applied to the pulley m. `Upon this shaft lare attached rotary files or cutters `a that are of the proper width tocut out the sections of the hinge between the knuckles, and the distancethat these are apart determines the lengthof the said knuckles. Theholder o is mounted upon the stock h by a fulcrum-pin,3, and providedwith a spring or springs, r', adjusting-screw s, and spring-fingers o,the lower ends of which form loops to receive the rounded edge of thehinge. These spring-holding fingers are situated between the cutters n,so that a's the hinge blanks are moved along in the transverse groove ofthe bed a, and arrested by the stop 4, the fingers o rest against thecylinder portion of the hinge, and hold the same while the spacesare-cut out by the files or cutters u, and as the stock h, with theseles or cutters, moves, the fingers and holder o swing on the fulcrum 3and strain the holding-spring 1 to a greater tension. The slide-plate pis attached by screws 5 to the bed a, and adjusted by screws 6, andbeneath the overhanging edge 7 of this plate 1o the back edge of thehinge slides as it is passed along toward the stop 4;

tioned and firmly held while being cut. Beneath this plate p is thesupporting-bed t, that is fitted so as to be moved back by the lever w,and there is a hook, 10, upon the stockch (see Fig. 4) that draws back.this bed and a1- lows the hinge to drop. This hook l0 is lifted by, anincline and stop, 11so as to liberate the lever zd' and allow of itsreturn by a spring, 9], (shown by dotted lines,) before thenexthalf-hinge blank is moved forward toward the stop 4.

I claim as my invention- 1. The holder o with its fingers o, incombination with the cutters n, moving stock h, and mechanism forsupporting the blank or half-hinge, substantially as specied.

2. The sliding bed t and lever w, operated substantially as set forth,in combination with the stock h, holder o, revolving cutters n, andslide b, substantially as set forth.

Signed by me'this 10th day of August, A. D.

L. P. SUMMERS. Witnesses:

CHARLES PECK,

SAML. BAssETT.

thereby the hingelblank is accurately posi-`

